A two area dynamic stochastic general equilibrium model is employed to investigate the welfare implications of losing monetary independence. Two policy regimes are compared: (i) in one area there is a common currency, while in the other area countries still retain their autonomous monetary...

This paper revisits the question of the appropriate domain of a currency area using a New-Keynesian open economy model in which the world is split in two areas, each framed as a continuum of small open regions. We show that the adoption of a common currency like the euro can be beneficial for...